Gas pooling: a sampling technique to overcome spatial heterogeneity of soil carbon dioxide and nitrous oxide fluxes - Arias Navarro, Cristina; Díaz Pinés, Eugenio; Kiese, Ralf; Rosenstock, Todd S.; Rufino, Mariana C.; Stern, D.; Neufeldt, Henry; Verchot, Louis V.; Butterbach-Bahl, Klaus (Elsevier, 2013)